linux kernel security

In the Linux Kernel (Android) Cryptographic algorithm summary (cipher, Compress, Digest) article, it describes how to include three different types of kernel encryption algorithms in the kernel, and gives examples of how to invoke them in kernel modules.This article will foc

This semester the Linux kernel experiment is the final Print kernel page table, linear address----physical AddressWhen I saw this experiment, I thought of this init function (because that's what I was talking about at the time), which is the ^_^ of the Linux kernel page tabl

in our daily life that requires root to be deleted.During the installation of the Linux kernel, it is important to note that to use the Linux GUI you need to download and install QT.Summary: Android porting is primarily a Linux kernel migration.

-$ (config_sgi_ip22) + = Drivers/SGI.Drivers-$ (config_vt) + = Drivers/Video/video. oDrivers-$ (config_paride) + = Drivers/block/Paride.Drivers-$ (config_hamradio) + = Drivers/NET/hamradio. oDrivers-$ (config_tc) + = Drivers/TC.Drivers-$ (config_usb) + = Drivers/usb drv. oDrivers-$ (config_input) + = Drivers/input/inputdrv. oDrivers-$ (config_i2o) + = Drivers/message/i2o/i2o. oDrivers-$ (config_irda) + = Drivers/NET/IrDA/IRDA. oDrivers-$ (config_i2c) + = Drivers/I2C/I2C. oDrivers-$ (config_phone

(Timeout when the timer expires, the Process_timeout () function is called:static void Process_timeout (unsigned long __data) { wake_up_process (struct task_struct *) __data);}When the task is re-dispatched, the return code will continue to be executed before it enters sleep, at exactly schedule (). code for the process context to wait for a specific time to occur, you can put yourself in the waiting queue. However, waiting for a task on the queue may wait for a specific event to arrive, and

ARM Linux size kernel switch -cortex-a7 big. LITTLE size switch Code Analysis8-core CPUs or more cores, these CPUs may not be completely symmetrical. There are 4 A15 and 4 A7, or 4 A57 and 4 A53, even like HiSilicon Kylin 935 processor (4 Core A53 2.2 GHz + 4 core A53 1.5 GHz), the frequencies of these 8 cores may not be the same, then the use of the process requires the size of the core switch (high frequ

Tags: support port net art init hot ade dep alsMakefile not make LoveOnce in school, mixed for four years, did not learn anything, every day is skipping classes, surfing the internet, playing games, sleeping. When I graduated, I was told that I had no idea of makefile, but I felt a sense of embarrassment when I said make love.It's no exaggeration to say that kconfig and makefile are the two files we rely on when we browse the kernel code. Basically, t

placed under the Linux sub-directory. init: kernel initialization code ( note not system boot code ). IPC: code for interprocess communication. kernel: The core of the kernel, including process scheduling, timers, and some part of the platform-related code is placed in the Arch/*/

Tags: http bootstra strip image 16px net BSP CSDN developmentObjectiveIn recent months, the Linux kernel has probably been studied, the following need to conduct in-depth detailed analysis. The main development Board of S3C2440 is a hardware entity. Probably includes the following content:1 bootloader analysis, to Uboot-based, combined with the specific development Board situation. My goal is to explain how

Recommended blog posts:Linux Kernel "problem Gate"-learning issues and experience highlights Recommended download:Methodology of essence edition of "Cultivation of Linux kernel" Makefile is not make love I used to spend four years in school and didn't learn anything. Every day, I skip classes, surf the Internet, play games, and go to bed. When I graduated fr

About the data structures used in the kernel this series will have five articles, Introduced separately Linked list Queue Hash Mapping Red and black Treesfirst, the introduction of the core linked list The linked list defined in the kernel is a two-way list, in the previous article--libevent source code Analysis--queue.h in the understanding of tail Q_Q Ueue describes how to define a linked list queue in Fr

The new kernel of LinuxKernel cares about hardware support-general Linux technology-Linux technology and application information. For details, see the following. Linux Kernel has been particularly concerned about hardware support in the past year and is the primary objective

Main reference: https://www.linux.cn/article-6137-1.html1. Locate the required kernel version from the http://kernel.ubuntu.com/~kernel-ppa/mainline/and enter the corresponding file path.2. Select the. deb file, follow the operating system type, 32-bit Select i386 suffix, 64-bit select AMD suffix. Select which filesReference: Https://wiki.ubuntu.com/Kernel/Mainli

Refer to this How to Remove the old (or new) kernelshttp://ubuntuhandbook.org/index.php/2015/08/install-latest-kernel-script/1. In Ubuntu with a graphical interface:1.1 Installing synaptic Package Manager in Ubuntu Software Center1.2 Deleting packages using Synaptic Package Manager: Click the Reload button in the want to remove the new kernel. Select Status-installed on the left pane to make se

(which can be added to other partitions and operating systems). But it is also dangerous for some illegal users to start Linux randomly or pass dangerous parameters to the core when the system starts. Preventive measures: Edit file/etc/lilo.conf, in which you add the restricted parameter, which must be used in conjunction with the following password parameter, indicating that you need to enter a password when passing the parameters to the

"copyright notice: respect for the original, reproduced please retain the source: blog.csdn.net/shallnet. The article is for academic communication only and should not be used for commercial purposes " the memory image of a process consists of the following parts: code snippet, data segment, BSS segmentand Stack segments. And the area of the memory map,memory-mapped function mmap (), which is responsible for mapping the contents of the file to the virtual memory space of the process, through rea

include 内核头文件init 内核引导和初始化ipc 进程间通信代码kernel 像调度程序这样的核心子系统lib 通用内核函数mm 内存管理子系统和VMnet 网络子系统scripts 编译内核所用的脚本security Linux安全模块sound 语音子系统usr 早期用户空间代码 (所谓的 initramfs)2.3 Compiling kernel 2.3.1 configuration kernel1. Configuration Items Option two: Yes or no Option three: Yes or no or module (module